diff --git a/src/chainparams.cpp b/src/chainparams.cpp
index 09d914467..b15ea604e 100644
--- a/src/chainparams.cpp
+++ b/src/chainparams.cpp
@@ -94,7 +94,7 @@ class CMainParams : public CChainParams {
         consensus.nTreasuryPaymentsStartBlock = consensus.nMandatoryUpgradeBlock;
         consensus.BIP16Exception = uint256{};
         consensus.BIP34Height = consensus.nMandatoryUpgradeBlock;
-        consensus.BIP34Hash = uint256S("0xe06eaa9e2155705c2714875e132f957d4e392495fe22b7b287931c0464bf05bf");
+        consensus.BIP34Hash = uint256S("0x04cc27e77eea064c1d815af50e6bc920c507e3b9e051681dc481ee984450ce80");
         consensus.BIP65Height = 0;
         consensus.BIP66Height = 0;
         consensus.CSVHeight = 1;
@@ -212,7 +212,8 @@ class CMainParams : public CChainParams {
                 { 1300000, uint256S("0xccb0ccb4f2d160b7f51332da641a6c0f5d76f4dadb1d47d6c5fac73d29aa9fd6")},
                 { 1350000, uint256S("0x7562e5c43ff39a6993557d4f0f9e49690ba9d07a6b054c7313a35606c5eaf814")},
                 { 1400000, uint256S("0x5b85bce8fa177da2ed744a3fbe35bb4e5e1ff319c110b17ec0715e6d3b1ca8de")},
-                { 1442800, uint256S("0xe06eaa9e2155705c2714875e132f957d4e392495fe22b7b287931c0464bf05bf")}
+                { 1442800, uint256S("0xe06eaa9e2155705c2714875e132f957d4e392495fe22b7b287931c0464bf05bf")},
+                { 1921891, uint256S("0x04cc27e77eea064c1d815af50e6bc920c507e3b9e051681dc481ee984450ce80")}
             }
         };